EP0516240B1 - Vorrichtung zum Zuführen einer Flüssigkeit unter konstantem Druck - Google Patents

Vorrichtung zum Zuführen einer Flüssigkeit unter konstantem Druck Download PDF

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Publication number
EP0516240B1
EP0516240B1 EP92201514A EP92201514A EP0516240B1 EP 0516240 B1 EP0516240 B1 EP 0516240B1 EP 92201514 A EP92201514 A EP 92201514A EP 92201514 A EP92201514 A EP 92201514A EP 0516240 B1 EP0516240 B1 EP 0516240B1
Authority
EP
European Patent Office
Prior art keywords
supply
liquid
tank compartment
pipe
replenishing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92201514A
Other languages
English (en)
French (fr)
Other versions
EP0516240A1 (de
Inventor
Ueda C/O Shikoku Kakoki Co. Ltd. Michio
Akai C/O Shikoku Kakoki Co. Ltd. Tadao
Nishino C/O Shikoku Kakoki Co. Ltd. Hiromichi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shikoku Kakoki Co Ltd
Original Assignee
Shikoku Kakoki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shikoku Kakoki Co Ltd filed Critical Shikoku Kakoki Co Ltd
Publication of EP0516240A1 publication Critical patent/EP0516240A1/de
Application granted granted Critical
Publication of EP0516240B1 publication Critical patent/EP0516240B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B3/06—Methods of, or means for, filling the material into the containers or receptacles by gravity flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/04—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus without applying pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/0003—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes provided with automatic fluid control means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2514—Self-proportioning flow systems
    • Y10T137/2534—Liquid level response
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7358—By float controlled valve
    • Y10T137/742—In separate communicating float chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85954—Closed circulating system

Definitions

  • the present invention relates to an apparatus for supplying a liquid under a constant pressure, for example, for use in supplying a liquid to containers each in a specified amount while the containers are being transported by a conveyor.
  • Such apparatus comprise a supply tank having a supply outlet, a pressurizing unit for supplying pressurized air to the supply tank, and a control unit for controlling the pressure of the air in accordance with alterations of the level of a liquid in the supply tank so as to give a constant pressure to the liquid flowing out from the supply outlet.
  • the conventional apparatus requires pressure air and is therefore complex and expensive.
  • the apparatus is further cumbersome to handle because there is a need to input initial data, such as the liquid level, to the control unit.
  • the main object of the present invention is to provide an apparatus for supplying a liquid under a constant pressure which requires no pressurized air and which is inexpensive and easy to handle.
  • the apparatus of the invention for supplying a liquid under a constant pressure comprises a supply tank disposed at a higher level than articles to be supplied with the liquid, an overflow plate partitioning the interior of the supply tank into a main tank compartment and an auxiliary tank compartment, a supply pipe having an upper end connected to the main tank compartment and a lower end positioned to oppose the article, replenishing means for supplying a replenishment of the liquid to the main tank compartment at a rate in excess of the rate of supply by the supply pipe per unit time, means for transferring the liquid from the auxiliary tank compartment to the main tank compartat a rate in excess of the rate of supply, and control means for operating the replenishing means and stopping the transferring means upon the liquid level in the auxiliary tank compartment reaching a predetermined low level and for stopping the replenishing means and operating the transferring means upon the liquid level reaching a predetermined high level.
  • the replenishing means and the transferring means are brought into and out of operation as controlled in acccordance with the liquid level in the auxiliary tank compartment.
  • the liquid is supplied to the main tank compartment at a rate in excess of the rate of supply by the supply pipe per unit time, by the replenishing means while this means is in operation or by the transferring means while the replenishing means is out of operation. Accordingly, the main tank compartment is always in an overflow state, permitting the liquid to maintain a constant level therein and giving a constant pressure to the liquid to be supplied to articles (containers) through the supply pipe. Accordingly, the liquid supplying apparatus provided requires no pressure air and is inexpensive and easy to handle.
  • the drawing is a diagram showing the construction of an apparatus embodying the invention.
  • the drawing shows a container transport conveyor 11, and an apparatus 12 for supplying a liquid to containers C while the container is being transported by the conveyor 11.
  • the conveyor is accommodated in a closed aseptic chamber 21.
  • the chamber 21 serves to separate a required packing work space from the outside air, and is filled with aseptic air and maintained at a slightly increased pressure.
  • the supplying apparatus 12 comprises a reservoir tank 31 and a liquid supply tank 32.
  • the supply tank 32 is closed and has its interior partitioned by an overflow plate 33 into a main tank, compartment 34 and an auxiliary tank chamber 35.
  • the main tank compartment 34 is much greater than the auxiliary tank compartment 35.
  • the main tank compartment 34 has a bottom wall which is formed with a supply outlet 41 and an inlet 42.
  • the auxiliary tank compartment 35 has a bottom wall formed with an outlet 43.
  • a supply pipe 44 has one end connected to the supply outlet 41 and the other end extending into the aseptic chamber 21 and positioned above the path of transport of containers C.
  • the supply pipe 44 has a first electromagnetic shutoff valve 45.
  • a replenishing pipe 53 has one end in communication with the inlet 42 and the other end communicating with the reservoir tank 31.
  • the replenishing pipe 53 has a gear pump 47, a second electromagnetic shutoff valve 54 positioned upstream from the pump 47 and a flow control valve 52 downstream from the pump.
  • a transfer pipe 46 has one end communicating with the outlet 43 and the other end in communication with the intake side of the pump 47.
  • the transfer pipe 46 has a third electromagnetic shutoff valve 48.
  • the top wall and the bottom wall of the auxiliary tank compartment 35 are interconnected by a transparent pipe 55 having a bend at each end and including a vertical portion. Arranged along this portion are a high level sensor 56, intermediate level sensor 57 and low level sensor 58. These sensors 56 to 58 each comprise a photoelectric tube.
  • the aseptic chamber 21 is held in communication with the supply tank 32 by an equalizing pipe 61. If the conveyor 11 is not enclosed in the aseptic chamber 21 but exposed to the outside air, the equalizing pipe 61 need not be provided.
  • the main tank compartment 34 is filled with a liquid, permitting the liquid to flow out in a specified amount at a time from the supply outlet via the first valve 45 which is opened and closed, and the liquid level in the auxiliary tank compartment 35 is positioned between a high level and a low level.
  • the second valve 54 is held closed, the third valve 48 is open, and the liquid is circulated through the main and auxiliary tank compartments 34, 35.
  • the rate of circulation is set to a value in excess of the amount of liquid flowing out from the supply outlet 41 per unit time.
  • the low level sensor 58 detects the level to produce a detection signal.
  • the second valve 54 is opened and the third valve 48 is closed in response to the signal.
  • This discontinues the circulation of liquid and supplies a liquid replenishment from the reservoir tank 31 to the main compartment 34 of the supply tank 32.
  • the replenishing rate is equal to the circulation rate.
  • the main tank compartment 34 remains filled up with the liquid which remains at the definite level as in the period of circulation, the overall amount of liquid in the supply tank 32 consequently increases to gradually raise the liquid level in the auxiliary tank compartment 35.
  • the high level sensor 56 detects this level, whereupon the second valve 54 is closed again and the third valve 48 is opened in response to the resulting detection signal, discontinuing the replenishment from the reservoir tank 31 and starting the circulation again.
  • the time taken for the liquid level to descend from the intermediate level of the sensor 57 to the low level of the sensor 58 or from the high level of the sensor 56 to the low level of the sensor 58 is measured, whereby the amount of supply is measured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Basic Packing Technique (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Claims (4)

  1. Eine Vorrichtung zum Zuführen einer Flüssigkeit unter einem konstanten Druck mit:
    einem Zuführtank, der auf einem höheren Niveau als die Gegenstände angeordnet ist, denen die Flüssigkeit zugeführt werden soll,
    einer Überlaufplatte, die den Innenraum des Zuführtanks in einen Haupttankteil und einen Hilfstankteil aufteilt,
    einem Zuführrohr mit einem oberen Ende, das mit dem Haupttankteil verbunden ist, und mit einem unteren Ende, das gegenüber dem Gegenstand positioniert ist,
    einer Nachfülleinrichtung für die Zuführung einer Nachfüllflüssigkeit zu dem Haupttankteil in einer Menge, die größer ist als die Zuführmenge durch das Zufuhrrohr pro Zeiteinheit,
    eine Einrichtung für die Überführung der Flüssigkeit von dem Hilfstankteil zu dem Haupttankteil in einer Menge, die größer ist als die Zuführmenge, und
    einer Steuereinrichtung für den Betrieb der Nachfülleinrichtung und für das Anhalten der Überführeinrichtung, wenn das Flüssigkeitsniveau in dem Hilfstankteil ein bestimmtes unteres Niveau erreicht, und zum Anhalten der Nachfülleinrichttung und zum Ansteuern der Überführeinrichtung, wenn das Flüssigkeitsniveau ein bestimmtes hohes Niveau erreicht.
  2. Eine Vorrichtung wie in Anspruch 1 definiert, bei der eine Zuführstation unterhalb einer Öffnung des unteren Endes des Zuführrohrs positioniert ist und die Gegenstände Behälter sind, die durch einen intermittierend angetriebenen Förderer derart transportiert werden, daß sie nacheinander an der Zuführstation anhalten, wobei das Zuführrohr mit einem ersten Absperrventil versehen ist, das synchronisiert mit der Bewegung des intermittierend angetriebenen Förderers geöffnet oder geschlossen wird.
  3. Eine Vorrichtung wie in Anspruch 2 definiert,
    bei der der Förderer in einer geschlossenen aseptischen Kammer angeordnet und der Zuführtank geschlossen ist, wobei ein Ausgleichsrohr mit seinem einen Ende mit der aseptischen Kammer und mit seinem anderen Ende mit dem Zuführtank verbunden ist.
  4. Eine Vorrichtung wie in Anspruch 1 definiert,
    bei der die Nachfülleinrichtung ein Nachfüllrohr, das mit seinem einen Ende mit einem Speichertank und mit seinem anderen Ende mit dem Haupttankteil verbunden ist, und eine Pumpe aufweist, die in dem Nachfüllrohr vorgesehen ist, und bei der die Überführeinrichtung ein Überführrohr aufweist, das mit seinem einen Ende mit dem Hilfstankteil und mit seinem anderen Ende mit der Einlaßseite der Pumpe verbunden ist, wobei die Steuereinrichtung einen Niedrigniveausensor für die Erzeugung eines Niedrigniveauerkennungssignals, wenn das Flüssigkeitsniveau in dem Hilfstankteil bei Erreichen des bestimmten niedrigen Niveaus erfaßt wird, und einen Hochniveausensor für die Erzeugung eines Hochniveauerkennungssignals aufweist, wenn das Flüssigkeitsniveau bei Erreichen des bestimmten hohen Niveaus erfaßt wird, wobei ein zweites Absperrventil in dem Nachfüllrohr in einer Position stromaufwärts von der dortigen Pumpe vorgesehen und in Reaktion auf das Niedrigniveauerfassungssignal öffenbar ist, das zweite Absperrventil in Reaktion auf das Hochniveauerkennungssignal schließbar ist und mit einem dritten Absperrventil, das in dem Überführrohr vorgesehen ist und in Reaktion zu dem Niedrigniveauerkennungssignal schließbar ist, wobei das dritte Absperrventil in Reaktion auf das Hochniveauerkennungssignal öffenbar ist.
EP92201514A 1991-05-29 1992-05-27 Vorrichtung zum Zuführen einer Flüssigkeit unter konstantem Druck Expired - Lifetime EP0516240B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP38628/91U 1991-05-29
JP1991038628U JP2542518Y2 (ja) 1991-05-29 1991-05-29 液体定圧供給装置

Publications (2)

Publication Number Publication Date
EP0516240A1 EP0516240A1 (de) 1992-12-02
EP0516240B1 true EP0516240B1 (de) 1995-04-26

Family

ID=12530507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92201514A Expired - Lifetime EP0516240B1 (de) 1991-05-29 1992-05-27 Vorrichtung zum Zuführen einer Flüssigkeit unter konstantem Druck

Country Status (4)

Country Link
US (1) US5203367A (de)
EP (1) EP0516240B1 (de)
JP (1) JP2542518Y2 (de)
DE (1) DE69202197T2 (de)

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TWI822339B (zh) * 2022-09-19 2023-11-11 英業達股份有限公司 液位控制設備

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TWI822339B (zh) * 2022-09-19 2023-11-11 英業達股份有限公司 液位控制設備

Also Published As

Publication number Publication date
EP0516240A1 (de) 1992-12-02
DE69202197T2 (de) 1995-09-28
US5203367A (en) 1993-04-20
JP2542518Y2 (ja) 1997-07-30
DE69202197D1 (de) 1995-06-01
JPH04132085U (ja) 1992-12-07

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